4 Repair
4.5.3. Replacement of parallel arm / Replacement of bearing
3HAC022032-001 Revision: E170
© Copyright 2004-2008 ABB. All rights reserved.
Refitting, parallel arm/bearing
The procedure below details how to refit the parallel arm on to the robot during repair work.
It also details how to fit a new bearing to the parallel arm as replacement.
Caution!
The parallel arm weighs 70 kg (robot version IRB 4400/45 and IRB 4450S) or 115 kg (robot
version IRB 4400/60, IRB 4400/L30, IRB 4400/L10, IRB 4400/S)! All lifting equipment
used must be dimensioned accordingly!
4. Loosen the attachment screws (A) so
that the cabling can be moved slightly.
xx0300000127
5. Remove the 10 attachment screws and
the washer that holds the parallel arm to
gearbox axis 3.
6. Lift away the parallel arm from the robot.
7. If they are to be replaced, remove the
bearing and sealings from the parallel
arm.
Action Info/Illustration
Action Info/Illustration
1.
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the
robot!
For Foundry Prime robots: Do not turn
off the air pressure to motors and SMB.
2. Fit the new V-ring to the parallel arm. Part no. is specified in Required
equipment on page 169
3. If the bearing is to be changed:
• Heat the new groove ball bearing
to 170°C.
• Fit the bearing to the parallel arm.
If the old bearing is kept:
• Grease the bearing.
Part no. is specified in Required
equipment on page 169
4. Fit the sealing ring to the bearing. Part no. is specified in Required
equipment on page 169
Continued
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